Stamp Dual

What if you stay more than 30 days in Taiwan in the dual passports?

I have U.S. passports and Taiwan. I left U.S. in U.S. passport and entered with a passport from Taiwan so that Taiwan can apply for medical benefits (and also not have to get a visa). It was assumed he had to leave Taiwan on my day 27, but decided to extend an additional week, exceeding 30 days. When I leave Taiwan, I will use my passport Taiwanese. I will also use my U.S. passport for immigration officials to end Taiwan's my entry / exit (it will use U.S. passport to enter the U.S.). My mom has always done this in the past without any problem and the officers always re-print your U.S. passport. However, has never stayed more than 30 days (a U.S. citizen gets 30 days stay without visa for your information). For any Taiwanese who have dual nationality – Do you know if officials Immigration still stamp your U.S. passport after 30 days without any problems? What if it does not seal? Only serious answers please! Thanks in advance!

As a citizen of Taiwan is not overstaying and used his passport to enter Taiwan, no broken law here. Just be sure to keep both passports with you at all times. If you do not stamp your passport? Do not worry about it. Nothing illegal about their actions.

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